Finding the Fourth Proportional to 22,103.55, 33,155.67 and 12,305.10

Step by Step Solution

1. Step 1: Write the proportion equation
   22,103.55 : 33,155.67 = 12,305.10 : x
2. Step 2: Convert to fraction form
   22,103.55/33,155.67 = 12,305.10/x
3. Step 3: Cross multiply
   22,103.55x = 33,155.67 × 12,305.10
4. Step 4: Simplify right side
   22,103.55x = 407,983,959.25
5. Step 5: Solve for x
   x = 407,983,959.25/22,103.55
6. Step 6: Final answer
   x = 18,457.85